CN201716109U - Spectrograph and oil spilling monitoring system - Google Patents
Spectrograph and oil spilling monitoring system Download PDFInfo
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- CN201716109U CN201716109U CN2010202462657U CN201020246265U CN201716109U CN 201716109 U CN201716109 U CN 201716109U CN 2010202462657 U CN2010202462657 U CN 2010202462657U CN 201020246265 U CN201020246265 U CN 201020246265U CN 201716109 U CN201716109 U CN 201716109U
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Abstract
The utility model discloses a spectrograph and an oil spilling monitoring system. The spectrograph comprises a box body, a light splitting unit, a photoelectricity converting unit and a signal output unit, wherein the light splitting unit and the photoelectricity converting unit are arranged in the box body; the signal output unit is arranged on the box body; in addition, a signal amplifying unit is also arranged near one side of the signal output unit in the box body; on one hand, the signal amplifying unit is connected with the photoelectricity converting unit; on the other hand, the signal amplifying unit is connected with the signal output unit; and a light barrier is arranged between the signal amplifying unit and the light splitting unit. In the utility model, the signal amplifying unit is arranged in the spectrograph for amplifying an electric signal and then outputting the amplified electric signal, thereby facilitating the acquisition for a measuring signal of the spectrograph and improving the output accuracy of the measuring signal.
Description
Technical field
The utility model relates to a kind of conversion of photosignal and the processing of electric signal, specifically, relates to a kind of spectrometer and uses the spilled oil monitoring system of this spectrometer, belongs to the remote sensing survey technical field.
Background technology
In human social activity's process, petroleum products is being brought into play crucial effects.Along with the mankind obtain movable increasingly to ocean resources, especially in the transportation and petroleum resources performance history of oil, oily leakage incident happens occasionally.As one of serious marine eco-environment disaster, oil spilling not only brings direct influence to the marine eco-environment, bring significant damage also for the economic development and the people's health of coastland, can therefore effectively handle oil spill have become the problem that the whole world is paid close attention to and puted forth effort to solve.
The prerequisite of handling oil spill is to monitor oil spilling position, greasy dirt type and pollution level, and these monitorings can realize by the spilled oil monitoring system.Spilled oil monitoring system commonly used has at present generally comprised Laser emission and receiving equipment, spectrometer and data acquisition process equipment, its principle is to utilize the interaction of material in high power laser and sea and the surface seawater, reception is loaded with the optical signalling of monitored target information, the light signal that receives is converted to electric signal, treated, collection and computational analysis realize monitoring and identification to monitoring objective.Gather and the processing spectroscopic data for ease of data acquisition process equipment, spectrometer need carry out beam split to the fluorescence signal that telescope in Laser emission and the receiving equipment receives, and light signal is converted to electric signal output.
Generally only be provided with spectrophotometric unit and photoelectric conversion unit in the existing spectrometer, photoelectric conversion unit adopts CCD/PDA detection array or CMOS to realize.The electric signal of photoelectric conversion unit output is the weak current signal, need this signal amplified and be converted to voltage signal after gather for data acquisition process equipment again, therefore, need be outside spectrometer extra signalization amplifying unit again.In use there is following shortcoming and defect in this class spectrometer: 1, photoelectric conversion unit low-response, sensitivity are low, and its responding range is in visible light, near infrared light zone, though include spectral information in a big way, but for oily fluorescence detection, spectral information in this scope does not almost have reference value, has increased the difficulty that follow-up data is handled; 2, signal amplification unit is arranged on outside the spectrometer, and the ultra-weak electronic signal of photoelectric conversion unit output easily because of outside electromagnetic interference causes bigger loss, very easily causes the part spectral signal to be lost after spectrometer output, influences the degree of accuracy of oil spilling measurement result.
Summary of the invention
The above-mentioned shortcoming and defect that the utility model exists at existing spectrometer, a kind of spectrometer is provided, output has again made things convenient for the collection to the spectrometer measurement signal after by signalization amplifying unit in spectrometer electric signal being amplified, and has improved the accuracy of the measuring-signal of its output.
For solving the problems of the technologies described above, the utility model is achieved by the following technical solutions:
A kind of spectrometer comprises box body, is arranged on spectrophotometric unit and photoelectric conversion unit in the box body, and is arranged on the signal output unit on the box body; Also be provided with signal amplification unit in described box body, near described signal output unit one side, it connects described photoelectric conversion unit on the one hand, connects described signal output unit on the other hand; Be provided with light barrier between described signal amplification unit and the described spectrophotometric unit.
Aforesaid spectrometer, for reducing the occupied space of spectrophotometric unit, reducing the spectrum miscellany rate, described spectrophotometric unit adopts following structure to realize: spectrophotometric unit includes:
Slit is used for the light signal that transmission enters spectrometer;
Level crossing is used for the light signal from slit transmission is reflected away;
Collimating mirror, the light signal of reception flat mirror reflects, and collimation is parallel beam output;
Grating is used to receive the parallel beam of collimating mirror output, and produces the diffraction beam split;
The imaging mirror is used for the diffraction beam split that grating produces is focused on described photoelectric conversion unit.
Aforesaid spectrometer, described collimating mirror and described imaging mirror all adopt concave mirror to realize.
Aforesaid spectrometer, for improving the response speed and the sensitivity of photoelectric conversion unit, described photoelectric conversion unit adopts the photomultiplier of 32 passages to realize.
Aforesaid spectrometer, for reducing signal the crosstalking in transmission course of photomultiplier adjacency channel, the output electric signal of described photomultiplier is connected to the input end of described signal amplification unit by winding displacement, in winding displacement, be connected with ground wire between the passage of two adjacent photomultipliers.
In addition, the utility model also provides a kind of spilled oil monitoring system, includes Laser emission and receiving equipment, spectrometer and data acquisition process equipment; Described spectrometer comprises box body, is arranged on spectrophotometric unit and photoelectric conversion unit in the box body, and is arranged on the signal output unit on the box body; Also be provided with signal amplification unit in described box body, near described signal output unit one side, it connects described photoelectric conversion unit on the one hand, connects described signal output unit on the other hand; Be provided with light barrier between described signal amplification unit and the described spectrophotometric unit.
Compared with prior art, advantage of the present utility model and good effect are: by spectrophotometric unit, photoelectric conversion unit and signal amplification unit are integrated in the same box body, the beam split of signal, opto-electronic conversion and being amplified in the same instrument finished, effectively avoided outside electromagnetic interference and, be convenient to the collection and the output of signal the influence that signal causes; By light barrier is set spectrophotometric unit in the box body and signal amplification unit subregion are separated, effectively reduced the interference that parasitic light is gathered spectrometer fluorescence on the one hand, can protect optical element as much as possible on the other hand, prevent its damage; Signal amplification unit can be exported with the shortest distance the voltage signal of signal amplification unit output near the signal output unit setting from spectrometer, make that the main electric signal that transmits in the box body is a current signal, further reduces crosstalking between the channel signal.
After reading embodiment of the present utility model in conjunction with the accompanying drawings, other characteristics of the present utility model and advantage will become clearer.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the utility model spectrometer.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.
Fig. 1 shows the structural representation of an embodiment of spectrometer described in the utility model.
Signalization amplifying unit not in the spectrometer that the utility model embodiment uses at existing spilled oil monitoring system, transmission course, be subjected to outside electromagnetic interference easily and produce loss, cause dropout from the ultra-weak electronic signal of spectrometer output, further the problem of degree of accuracy is monitored in influence, a kind of spectrometer that is built-in with signal amplification unit is provided, and the position that is provided with of signal amplification unit made rational qualification, to reduce the interference and the loss of light signal, electric signal in the spectrometer, improve the measurement sensitivity and the accuracy of spectrometer.
In conjunction with shown in Figure 1, specifically, the spectrometer of present embodiment comprises box body 1, and box body 1 is provided with spectrometer signal output unit 5, inner except that being provided with spectrophotometric unit 2 and photoelectric conversion unit 3 at box body 1, also be provided with signal amplification unit 4 in a side near signal output unit 5.Signal amplification unit 4 is connected with photoelectric conversion unit 3 on the one hand, connects signal output unit 5 on the other hand.And, between signal amplification unit 4 and spectrophotometric unit 2, be provided with light barrier 6, utilize light barrier 6, signal amplification unit 4 and spectrophotometric unit 2 are separated into two distinct area.
The course of work of the spectrometer of said structure is as follows: external optical signal inputs in the spectrometer box body 1 through optical fiber, earlier through spectrophotometric unit 2 beam split, converts electric signal to through photoelectric conversion unit 3 then.This electric signal is faint pulsed current signal, and voltage magnitude is less, and for ease of the collection of follow-up data collecting device, this signal inputs to earlier in the signal amplification unit 4.4 pairs of electric signal of signal amplification unit are converted into voltage signal when amplifying, at last by signal output unit 5 outputs.
In this embodiment, owing to have multi-channel electric signal in the spectrometer, consider that voltage signal is than the easier generation of current signal problem interfering with each other, signal amplification unit 4 is arranged on a side of close signal output unit 5, like this, be convenient to the voltage signal of signal amplification unit 4 outputs with the shortest transmission range output.In addition; consider that again can there be light leak in signal output unit 5 places, the spectrometer signals collecting is caused interference, protect optical element to damage simultaneously because of strong illumination for avoiding light leak; this embodiment is provided with light barrier 6 in box body 1, realize the subregion layout of light path and circuit.
As the further qualification to above-mentioned spectrometer technical scheme, the spectrophotometric unit 2 of this embodiment spectrometer can preferably adopt the Czerny-Turner light channel structure of symmetry to realize that concrete structure is:
Use the beam split light path of said structure, after being adjusted to used spectral range, grating 24 is fixed and is not scanned.Spectrophotometric unit 2 compact conformations of said structure, occupied space is little, thereby can dwindle the volume of overall optical spectrometer; And spectrophotometric unit 2 spectrum miscellany rates are low, and precision is higher.
In this embodiment, for improving the response speed and the converting sensitivity of photoelectric conversion unit 3, preferably adopt the photomultiplier of 32 passages to realize.
In this embodiment, if adopt photomultiplier as photoelectric conversion unit, in conjunction with the design feature of photomultiplier, the output electric signal of photomultiplier is connected to the input end of signal amplification unit 4 by winding displacement.When adopting bus-bar construction, the spacing between the photomultiplier adjacency channel and limited, the current signal strength of its conversion output is low in addition, frequency is fast, and the signal cross-talk between passage and the passage can compare seriously.Given this, be connected with ground wire between the passage of embodiment by two adjacent in winding displacement photomultipliers, to reduce crosstalking in the signals transmission as far as possible.
For signal amplification unit 4, include several signal amplification circuit subelement in it, a passage of the corresponding photoelectric conversion unit in a way unit is realized amplification and conversion to one road signal.The signal amplification circuit of every way unit can adopt integrated amplification chip and peripheral circuit thereof commonly used at present to realize.
Spectrometer described in the utility model can be applicable in the spilled oil monitoring system, as photoelectric conversion device, the optical signalling of Laser emission and receiving equipment monitoring in the reception spilled oil monitoring system, be converted into electric signal output, gather and handle spectroscopic data for data acquisition process equipment, realize monitoring and identification monitoring objective.
Above embodiment only in order to the explanation the technical solution of the utility model, but not limits it; Although the utility model is had been described in detail with reference to previous embodiment, for the person of ordinary skill of the art, still can make amendment to the technical scheme that previous embodiment is put down in writing, perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of the utility model technical scheme required for protection.
Claims (10)
1. spectrometer, comprise box body, be arranged on spectrophotometric unit and photoelectric conversion unit in the box body, and be arranged on signal output unit on the box body, it is characterized in that, also be provided with signal amplification unit in described box body, near described signal output unit one side, it connects described photoelectric conversion unit on the one hand, connects described signal output unit on the other hand; Be provided with light barrier between described signal amplification unit and the described spectrophotometric unit.
2. spectrometer according to claim 1 is characterized in that, described spectrophotometric unit includes:
Slit is used for the light signal that transmission enters spectrometer;
Level crossing is used for the light signal from slit transmission is reflected away;
Collimating mirror, the light signal of reception flat mirror reflects, and collimation is parallel beam output;
Grating is used to receive the parallel beam of collimating mirror output, and produces the diffraction beam split;
The imaging mirror is used for the diffraction beam split that grating produces is focused on described photoelectric conversion unit.
3. spectrometer according to claim 2 is characterized in that, described collimating mirror and described imaging mirror are concave mirror.
4. according to each described spectrometer in the claim 1 to 3, it is characterized in that described photoelectric conversion unit is 32 channel photomultipliers.
5. spectrometer according to claim 4 is characterized in that, the output electric signal of described photomultiplier is connected to the input end of described signal amplification unit by winding displacement, in winding displacement, is connected with ground wire between the passage of two adjacent photomultipliers.
6. spilled oil monitoring system, include Laser emission and receiving equipment, spectrometer and data acquisition process equipment, described spectrometer comprises box body, be arranged on spectrophotometric unit and photoelectric conversion unit in the box body, and be arranged on signal output unit on the box body, it is characterized in that, in described box body, also be provided with signal amplification unit near described signal output unit one side, it connects described photoelectric conversion unit on the one hand, connects described signal output unit on the other hand; Be provided with light barrier between described signal amplification unit and the described spectrophotometric unit.
7. spilled oil monitoring according to claim 6 system is characterized in that described spectrophotometric unit includes:
Slit is used for the light signal that transmission enters spectrometer;
Level crossing is used for the light signal from slit transmission is reflected away;
Collimating mirror, the light signal of reception flat mirror reflects, and collimation is parallel beam output;
Grating is used to receive the parallel beam of collimating mirror output, and produces the diffraction beam split;
The imaging mirror is used for the diffraction beam split that grating produces is focused on described photoelectric conversion unit.
8. spilled oil monitoring according to claim 7 system is characterized in that described collimating mirror and described imaging mirror are concave mirror.
9. according to each described spilled oil monitoring system in the claim 6 to 8, it is characterized in that described photoelectric conversion unit is 32 channel photomultipliers.
10. spilled oil monitoring according to claim 9 system, it is characterized in that, the electrical signal of described photomultiplier is connected to the input end of described signal amplification unit by winding displacement, in winding displacement, is connected with ground wire between the passage of two adjacent photomultipliers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202462657U CN201716109U (en) | 2010-06-22 | 2010-06-22 | Spectrograph and oil spilling monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010202462657U CN201716109U (en) | 2010-06-22 | 2010-06-22 | Spectrograph and oil spilling monitoring system |
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| CN201716109U true CN201716109U (en) | 2011-01-19 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435609A (en) * | 2011-04-07 | 2012-05-02 | 无锡市佳诚太阳能科技有限公司 | EL (electroluminescence) tester for scanning solar modules |
| CN104185784A (en) * | 2012-03-30 | 2014-12-03 | 东亚Dkk株式会社 | Oil film detection device |
| CN104502321A (en) * | 2015-01-06 | 2015-04-08 | 李颖 | Oil overflowing monitoring system based on laser excitation fluorescent technology and working method of oil overflowing monitoring system |
| CN104677267A (en) * | 2015-02-02 | 2015-06-03 | 九江精达检测技术有限公司 | Rotary inductosyn with strong electromagnetic interference resisting capability and preparation method thereof |
| CN105628572A (en) * | 2016-03-30 | 2016-06-01 | 广东美的厨房电器制造有限公司 | Lens, device for detecting attachment magnitude and household appliance |
| CN106651964A (en) * | 2017-02-28 | 2017-05-10 | 嘉兴锐视智能科技有限公司 | Calibration system and calibration device of laser camera |
| CN106769882A (en) * | 2016-11-01 | 2017-05-31 | 深圳先进技术研究院 | Spilled oil monitoring instrument and its monitoring method |
| CN109297944A (en) * | 2018-09-27 | 2019-02-01 | 中国船舶工业系统工程研究院 | A kind of multichannel Fluorescence Spectrometer identified for marine oil overflow oil kind |
| CN109738070A (en) * | 2019-01-07 | 2019-05-10 | 北京大学 | A kind of removable teaching ultraviolet-visible spectrometer system and its control method |
-
2010
- 2010-06-22 CN CN2010202462657U patent/CN201716109U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435609A (en) * | 2011-04-07 | 2012-05-02 | 无锡市佳诚太阳能科技有限公司 | EL (electroluminescence) tester for scanning solar modules |
| CN104185784A (en) * | 2012-03-30 | 2014-12-03 | 东亚Dkk株式会社 | Oil film detection device |
| CN104185784B (en) * | 2012-03-30 | 2016-07-06 | 东亚Dkk株式会社 | Oil spill detection device |
| CN104502321A (en) * | 2015-01-06 | 2015-04-08 | 李颖 | Oil overflowing monitoring system based on laser excitation fluorescent technology and working method of oil overflowing monitoring system |
| CN104677267A (en) * | 2015-02-02 | 2015-06-03 | 九江精达检测技术有限公司 | Rotary inductosyn with strong electromagnetic interference resisting capability and preparation method thereof |
| CN105628572A (en) * | 2016-03-30 | 2016-06-01 | 广东美的厨房电器制造有限公司 | Lens, device for detecting attachment magnitude and household appliance |
| CN105628572B (en) * | 2016-03-30 | 2018-05-22 | 广东美的厨房电器制造有限公司 | Lens, for detecting the device of attachment magnitude and household electrical appliance |
| CN106769882A (en) * | 2016-11-01 | 2017-05-31 | 深圳先进技术研究院 | Spilled oil monitoring instrument and its monitoring method |
| CN106769882B (en) * | 2016-11-01 | 2021-12-03 | 深圳先进技术研究院 | Oil spilling monitor and monitoring method thereof |
| CN106651964A (en) * | 2017-02-28 | 2017-05-10 | 嘉兴锐视智能科技有限公司 | Calibration system and calibration device of laser camera |
| CN109297944A (en) * | 2018-09-27 | 2019-02-01 | 中国船舶工业系统工程研究院 | A kind of multichannel Fluorescence Spectrometer identified for marine oil overflow oil kind |
| CN109738070A (en) * | 2019-01-07 | 2019-05-10 | 北京大学 | A kind of removable teaching ultraviolet-visible spectrometer system and its control method |
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Granted publication date: 20110119 Termination date: 20110622 |